Machine, in particular padding machine, to backfill pipelines

ABSTRACT

Machine, especially a padding machine, (10) for the burying of pipes, in particular arranged in a respective excavation of the ground, quali gas pipelines, oil pipelines, aqueducts, or altri, in particular for la covering of said pipe with a corresponding material, in particular un treated material, preferably screened or frantumato, comprising a main support framework (12) of the apparatus, in particular which extends according to a respective longitudinal axis of the same machine (10), a cabin (24) for housing the driver of the machine (10), such a cabin is in the form of a cabin movable with respect to said main support frame (12). Said cabin (24) for housing the driver of the machine (10) can be positioned, in corresponding vertical positions, or placed at height levels different from each other, preferably moving vertically, or perpendicularly to said ground.

The present finding relates to una machine, especially a paddingmachine, for the burying of pipes, in particular arranged in arespective excavation of the ground, such as gas pipelines, oilpipelines, aqueducts, or others, and in particular adapted to cover saidpipe with a corresponding material.

Preferably said material is a treated, i.e., screened material, orsuitably crushed, such as not to damage the pipe or such as not tocreate empty zones about the same pipe, and preferably consists of thewaste material of the pipe laying excavation.

Machines, or padding machines, are known for the burying of pipes, inparticular arranged in a respective excavation of the ground, such asgas pipelines, oil pipelines, aqueducts, or other, and in particularadapted to cover said pipe with a corresponding material, which machinescomprise a main support frame of the apparatus, a cabin for housing thedriver of the machine, such a cabin is in the form of a cabin that ismovable transversally between opposite transversal control positions ofa respective side of the machine.

In these already known machines, however, the number of devicesresponsible for the control of the machine needs to be duplicated, andthus there is an excessive number of control devices; furthermore, theyare uncomfortable for use by the driver, who has to operate whilestanding in front of the respective control devices.

Furthermore, in said already known machines, in order to transport themachine, it is necessary to disassemble said cabin, with a considerableloss of time and work for the staff in charge.

Moreover, in said already known machines, for the driver to get on andoff said cabin, it is necessary to use bulky elongated stairs, resultingin a risk of falls and consequent injuries for the staff in charge.

Therefore, the need is felt in the art, to provide machines which allowthe driver to have a good view, in particular of the operative area ofthe same machine.

Furthermore, the need is also felt in the art to keep the overalldimensions of the machine to a minimum.

Furthermore, the need is also felt in the art to have a driver who isprotected, and who can safely operate.

By the present finding, a solution is proposed, which is new andalternative compared to the solutions known so far, and in particular,the aim is to obviate one or more of the drawbacks or problem citedabove and/or to meet one or more of the needs cited above, and/or in anycase felt in the art, and which can in particular be inferred from whathas been reported above.

Therefore, a machine is provided, especially a self-propelled screen,for the burying of pipes, such as gas pipelines, oil pipelines,aqueducts, or other, in particular adapted to cover said pipe with acorresponding material, preferably consisting of the waste material ofthe pipe laying excavation; comprising a main support frame of theapparatus, a cabin for housing the driver of the machine, such a cabinis in the form of a cabin movable with respect to said main supportframe, characterized in that said cabin for housing the driver of themachine can be positioned, in corresponding vertical positions, orplaced at height levels different from each other, preferably movingvertically, or perpendicularly to said ground.

In this manner, it is possible to arrange the cabin in correspondingadvantageous vertical operating positions.

This and other innovative aspects are, anyhow, set forth in the attachedclaims, the technical characteristics of which can be found, togetherwith corresponding advantages achieved, in the following detaileddescription, illustrating a merely exemplary, non-limiting embodiment ofthe finding, and which is given with reference to the attached drawings,in which:

FIG. 1A illustrates a perspective schematic view of a preferredimplementation of a machine according to the present finding;

FIG. 1B illustrates a perspective schematic view, taken from a differentside with respect to the one of FIG. 1A, of the preferred implementationof a machine according to the present finding;

FIG. 2A illustrates a schematic side elevational view of the preferredimplementation of a machine according to the present finding, with thecabin in a lowered condition for the access by the driver or operator;

FIG. 2B illustrates a schematic front elevational view of the preferredimplementation of a machine according to the present finding, with thecabin in lowered condition for the access by the driver or operator;

FIG. 3A illustrates a schematic side elevational view of the preferredimplementation of a machine according to the present finding, with thecabin in transfer guide working condition of the machine;

FIG. 3B illustrates a schematic front elevational view of the preferredimplementation of a machine according to the present finding, with thecabin in transfer guide working condition of the machine;

FIG. 4A illustrates a schematic side elevational view of the front partof the preferred implementation of a machine according to the presentfinding, with the cabin in rotated working condition for controlling theburying of the excavation;

FIG. 4B illustrates a schematic front elevational view of the front partof the preferred implementation of a machine according to the presentfinding, with the cabin in rotated working condition for controlling theburying of the excavation;

FIG. 5 illustrates a schematic top plan view of a detail of thepreferred implementation of a machine according to the present finding,which illustrates the cabin rotated on the opposite side from the oneillustrated in the FIGS. 4A and 4B;

FIG. 6 illustrates an exploded perspective schematic view of thepreferred implementation of a machine according to the present finding;

FIG. 7A illustrates a schematic, enlarged front elevational view of thepreferred implementation of a machine according to the present finding,with particular illustration of the protection means of the cabin asfrontally seen;

FIG. 7B illustrates a schematic, enlarged front elevational view of thepreferred implementation of a machine according to the present finding,with particular illustration of the protection means of the cabin, withof the same cabin as laterally seen.

In the attached figures, a preferred implementation 10 of the machine isillustrated, especially a padding machine, for the burying of pipes, inparticular arranged in a respective excavation of the ground, forexample, gas pipelines, oil pipelines, aqueducts, or others, and inparticular in the form of a machine for the covering of said pipe with acorresponding material, especially such a treated, i.e. screened,material, as to not damage the pipe or such as not to create empty zonesaround the same pipe, and preferably consisting of the waste material ofthe pipe laying excavation.

In particular, the machine 10 comprises a main support framework 12 ofthe apparatus, in particular which extends according to a respectivelongitudinal axis of the same machine 10, and a cabin 24 for housing thedriver of the machine 10, such a cabin, it will be in any case bestinferred from the following of the present description, is in the formof a cabin movable with respect to said main support frame 12.

As illustrated, said cabin 24 for housing the driver of the machine 10has a lower wall 241, defining a lower support platform of the cabin 24,a front wall 242, a rear wall 243, opposite side walls 244, 245, and anupper covering wall 246, and, furthermore, it is provided withcorresponding view windows for the driver 240, at least provided at thefront wall 242 and at least part of the side walls 244, 245, inparticular in a substantial prolongation to, or in the proximity of, thefront window, as well as having at least a small door 247 for the accessto the same cabin 24, preferably provided at a side wall 244 or 245 ofthe same cabin 24.

In particular, as it can be inferred from said figures, in the machinemeans 14 for advancing the machine with respect to the ground areprovided, in particular in the form of revolving means, which engage theground and support said main support frame 12, and preferably a firstand a second side tracks 141, 142 for advancing and supporting themachine on the ground.

In particular, as it can be inferred from the figures, in the machinemeans, or apparatus, 16 for the collection of a material for coveringthe pipe are provided, in particular for the collection of said materialfrom the ground, in particular comprising a member 161 for separatingsaid material, in particular in the form of a horizontal cutting member.

In particular, as it can be inferred from FIG. 1A, the machine hasmeans, or apparatus, 18 for discharging the material, in particular thetreated material, above said pipes, and especially into the housingexcavation of the same pipe, in particular said means, or apparatus, 18for discharging the material are adapted to laterally extend, beyond therespective side of said machine 10, in particular at both sides of thesame machine 10, and preferably are in the form of a respective conveyorbelt having a support frame 181 supported by said main support frame 12of said machine 10 and an endless belt 182 rotatable on said supportframe.

In particular, as it can be inferred from FIG. 1A, in the machine means,or apparatus 20 are provided, for the treatment of said material, inparticular in the form of means, or apparatus, for screening saidmaterial, in particular including a perforated plate 201, preferablyextending from the top down, according to the rear direction withrespect to the machine 10, on which plate 201 said material is dropped,which material falls, passing through the screen on the upstream end ofsaid means, or apparatus 18 for discharging the material, while thatportion of the material that does not pass through the screen ispreferably discharged at the rear of the same machine 10.

However, it shall be understood that said perforated plate could also besubstituted by a convenient net suitable to the purpose.

Furthermore, the machine could comprise means for treating the materialwhich, being in the form of the above-mentioned screen, could also bedefined by corresponding bars or rotors which are adapted to perform thesame function, or in the form of a corresponding crusher, adapted tocrush the stones or hard material of said material, in order to reducethe dimensions thereof.

In particular, as it can be inferred from the figures, in the machine,means, or apparatus 22 are provided, for lifting the material above saidmeans, or apparatus 18 for the treatment of said material, which arepreferably in the form of a respective ascending conveyor belt,extending between a lowered end upstream, substantially at the level ofthe ground, receiving the material through said means, or apparatus 16for the collection of a material for covering the tube, and a lifted enddownstream, which lets the material fall on said means, or apparatus 20for the treatment of said material.

Said means, or apparatus 22 for lifting the material above said means,or apparatus 18 for the treatment of said material comprising a frame220 for supporting an endless lifting belt 223, which frame 220 issupported by said main support frame 12 of said machine 10, with saidendless belt 223 being rotatable on said support frame 220.

As illustrated, said means, or apparatus 22 for lifting the materialabove said means, or apparatus 18 for the treatment of said materialhave opposite side small edges 221, 222 for holding the material on saidendless belt, which small edges extend, diverging from each other,anteriorly to said endless belt with respective ends 221′, 222′, whichare arranged at the same ground and provide for centrally conveying iton said endless lifting belt 223, and/or on said means, or apparatus 16for the collection of a tube covering material.

Advantageously, as it can be inferred from the figures, said cabin 24for housing the driver of the machine 10 can be positioned, incorresponding vertical positions, or placed at height levels differentfrom each other, preferably moving vertically, or perpendicularly tosaid ground, or perpendicularly to a corresponding horizontal plane 120of the framework 12 of the machine supporting said cabin 24, inparticular defined by corresponding transversal bars.

In this manner, it is possible to arrange the cabin in correspondingadvantageous vertical operating positions.

Advantageously, as it can be inferred in particular from FIG. 7A, saidcabin 24 for housing the driver of the machine 10 has a single seat 25for the driver and the corresponding devices 27 for controlling themachine, arranged at said seat 25 and in particular internally, or atthe rear, with respect to the front wall 242 of the same cabin 24 forhousing the driver of the machine 10.

As it is inferred from the corresponding figures, said seat is adaptedto support a driver facing the front wall of the cabin.

In this manner, the number of devices to control the machine needs notto be duplicated; and, furthermore, the driver can operate while alwaysstaying in a sitting condition.

With advantage, as it can be inferred from the figures, said cabin 24for housing the driver of the machine 10 is supported, in particulardirectly supported, by said support framework 12, and with respect towhich it is movable in corresponding operating positions, as it will bein any case best inferred from the following of the present description.

In particular, advantageously, said cabin 24 for housing the driver ofthe machine 10 is movable in a lowered transport position, in which itfalls within the corresponding vertical footprint of the machine, inparticular having the respective upper part, in particular therespective part which is at the upper wall 246 of the cabin 28, which isin height inferiorly positioned with respect to the upper end part 22′of the remaining part of said machine 10, or of the upper end part 22′of said means, or apparatus 22 for lifting the material above saidmeans, or apparatus 18 for the treatment of said material.

As it can be inferred from the figures, in the normal advancing positionof the machine, i.e., also in said transport position, said cabin 24 forhousing the driver of the machine 10 has the respective wall or frontface 242, which is directed longitudinally forward and with therespective side walls 244, 245, which are transversally recessed withrespect to the sides of said machine 10.

In this manner, it is possible to transport the machine without havingto disassemble said cabin.

In particular, as it can be inferred from the figures, in the normaladvancing position of the machine, i.e., also in said transportposition, the cabin 28 is centrally positioned with respect to thefootprint or transversal extension of said machine 10.

In a particularly advantageous manner, as it can be inferred from theFIGS. 2A and 2B, said cabin 24 for housing the driver of the machine 10is in the form of a cabin 24 movable in a lowered position, which forthe same driver is to access to and/or exit from the same housing cabin24, in particular, said lowered access and/or exit position of thedriver from the same cabin 28 is such as to allow the access and/or exitof a driver who positions himself on the ground on which the samemachine 10 rests.

In this manner, it is possible for the driver to get on and off saidcabin without the aid of bulky elongated stairs.

With advantage, in said lowered position for the access and/or exit ofthe driver, the respective support lower wall 241 of the same cabin 24is at a height from the ground ranging between 65 cm and 80 cm, andpreferably at a height equal to, or substantially equal to, 70 cm.

Advantageously, as it can be inferred from the FIGS. 3A to 5 , saidcabin 24 for housing the driver of the machine 10 is in the form of acabin 24 movable in a respective raised working position.

Advantageously, as it can be inferred from the FIGS. 3A to 5 , saidcabin 24 for housing the driver of the machine 10 in the respectiveraised working position protrudes vertically above and beyond, or hasthe respective upper part, or wall 246 which is vertically above theupper end part 22′ of the remaining part of said machine 10, or of theupper end part 22′ of said means, or apparatus 22 for lifting thematerial above said means, or apparatus 18 for the treatment of saidmaterial.

In this manner, it is possible for the driver to have a good view.

With advantage, as it can be inferred from the FIGS. 3A and 3B, saidcabin 24 for housing the driver of the machine 10 is in the form of acabin 24 movable in a respective working position, in particular raised,for driving the machine in transfer advance, preferably in which saidcabin 24 for housing the driver of the machine 10 has the respectivewall or front face 242 which is directed longitudinally forward.

Advantageously, as it can be inferred from the figures, said position ofthe cabin 24 for driving the machine in transfer advance is verticallyaligned with said lowered position of the same cabin 24 for the accessand/or exit of the driver.

In this manner, the predetermined longitudinal size of the machine ismaintained.

In a particularly advantageous manner, said position of the cabin 24 fordriving the machine in transfer advance, and/or said lowered position ofthe same cabin 24 for the access and/or exit of the driver, arevertically aligned, or is vertically aligned, to said lowered positionof the same cabin 24 for transposing the same machine 10.

In this manner, the predetermined longitudinal size of the machine ismaintained.

With advantage, as it can be inferred from the figures, said cabin 24moves between said position for driving the machine in transfer advanceand said lowered position of the same cabin 24 for the access and/orexit of the driver, or between said position for driving the machine intransfer advance, or said lowered position of the same cabin 24 for theaccess and/or exit of the driver, and said lowered position of the samecabin 24 for transposing the same machine 10, with vertical movement, orwith movement perpendicular to said ground, or perpendicular to the mainsupport framework 12 of the machine.

In this manner, the predetermined longitudinal size of the machine ismaintained.

Advantageously, as it can be inferred from the FIGS. 4A to 5 , saidcabin 24 for housing the driver of the machine 10 moves in a respectivelateral working position, in which it controls a respective side of themachine 10, or in respective first and second opposite lateral workingpositions, in which it controls the respective side of the machine 10,in which lateral working positions it controls the covering of the pipe,i.e., the filling of the excavation, with said material, as pointed outby the dashed line of FIG. 4A, while controlling the forwarding of themachine.

Advantageously, as it is inferred from the corresponding figures, in therespective lateral working position, the same cabin 24 has thecorresponding wall or front face 242 which is laterally facing themachine 10.

In this manner, it is possible to use only one seat for the driver, andsingle control devices to drive the respective working operation of themachine.

With advantage, as it can be inferred from the figures, said cabin 24for housing the driver of the machine 10 in the respective workingposition projects in cantilevered fashion from said machine 10, inparticular supported by said main support frame of the machine 10.

Advantageously, as it can be inferred from the figures, said cabin 24for housing the driver of the machine 10, in the respective position fordriving the machine in transfer advance, projects in cantileveredfashion longitudinally of said machine 10.

Advantageously, as it can be inferred from the figures, said cabin 24for housing the driver of the machine 10 in the respective lateralworking position, in which it controls a respective side of the machine10 projects cantilevered sideways to said machine 10, in particularextending beyond the side of the machine.

With advantage, as it can be inferred from the figures, said cabin 24for housing the driver of the machine 10 is movable, through a rotationmovement with respect to a respective axis R, in particularperpendicular or vertical, in a lateral working position, in which itcontrols a respective side of the machine 10, or in respective first andsecond opposite lateral working positions, in which it controls therespective side of the machine 10.

In a particularly advantageous manner, as it can be inferred from thefigures, said rotation axis R is outside the cabin and is preferablyrearward and spaced therefrom.

Advantageously, as it can be inferred from the figures, said cabin 24for housing the driver of the machine 10 is movable, through saidrotation movement, between said first and second opposite lateralworking positions, in which it controls the respective side of themachine 10, with an angular movement equal to, or substantially equalto, 180°.

With advantage, as it can be inferred from the figures, said cabin 24for housing the driver of the machine 10 is movable, through saidrotation movement, between the respective lateral working position, inwhich it controls the respective side of the machine 10, and saiddriving position of the machine in transfer advance, with angularmovement equal to, or substantially equal to, 90°.

Advantageously, said cabin 24 moves perpendicularly downwards only whenthe same cabin 24 for housing the driver of the machine 10 is theposition for driving the machine in transfer advance working facinglongitudinally with respect to the machine 10.

Advantageously, as it can be inferred from the figures, in the loweredposition for the access and/or exit of the driver, the cabin 24 has thelower part thereof, in particular at least said lower wall 241, defininga lower support platform of the cabin 24, which is arranged next to therespective front end 221′, 222′ of the respective side small edge 221,222 for conveying the ground of said means, or apparatus, 22 for liftingthe material above said means, or apparatus 18 for the treatment of saidmaterial, or between said front ends 221′, 222′ of the same side smalledges 221, 222 for conveying the ground of the same means, or apparatus22 for lifting the material.

With advantage, as it can be inferred from the figures, said cabin 24for housing the driver of the machine 10 is supported by a correspondingsupport frame 26.

In a particularly advantageous manner, as it can be inferred from thefigures, said frame 26 for supporting said cabin 24 for housing thedriver of the machine 10 has a rotatable fulcrum with respect to saidmain support frame 12, in particular with respect to said rotation axisR of the cabin 24.

Advantageously, as it can be inferred from the figures, said frame 26for supporting said cabin 24 for housing the driver of the machine 10 issupported vertically movable with respect to said main support frame 12.

With advantage, as it can be inferred from the figures, said frame 26for supporting said cabin 24 for housing the driver of the machine 10comprises side upright means, preferably comprising opposite first andsecond side uprights 261, 262, in particular arranged in an intermediateposition with respect to the respective side of said cabin 24 forhousing the driver of the machine 10.

In this manner, the cabin support frame does not obstruct the driver'sview.

Advantageously, as it can be inferred from the figures, said frame 26for supporting said cabin 24 for housing the driver of the machine 10comprises rear upright means, preferably a respective rear upright 263,in particular centrally located.

Advantageously, as it can be inferred from the figures, said frame 26for supporting said cabin 24 for housing the driver of the machine 10comprises lower strut means, preferably comprising a plurality of lowerstruts, including a pair of side lower struts 265, 266, and optionallyan intermediate strut.

With advantage, as it can be inferred from the figures, said frame 26for supporting said cabin 24 for housing the driver of the machine 10comprises upper strut means, preferably comprising a plurality, inparticular a pair of upper struts 268, 269, in particular arranged atthe respective side of said cabin 24 for housing the driver of themachine 10.

Advantageously, as it can be inferred from the figures, said oppositefirst and second side uprights 261, 262 connect together, in anintermediate position, the corresponding lower struts 265, 266 and upperstruts 268, 269.

In a particularly advantageous manner, as it can be inferred from thefigures, lower crossbeam means are provided, in particular comprisingcorresponding front and rear crossbeams, 26 ia, 26 ip, respectively, andan intermediate crossbeam 26 ii, which are preferably equidistanttherefrom, which, especially at the respective ends, connect said lowerstruts 265, 266 together.

With advantage, as it can be inferred from the figures, upper crossbeamtraverso are provided, in particular comprising corresponding front andrear crossbeams 26 sa, 26 sp, respectively, which connect, especially atthe respective ends, said pair of side upper struts 268, 269.

Advantageously, as it can be inferred from the figures, respectiveoblique reinforcements 26 o are provided, which connect the side upperstruts 268, 269, of said frame 26 for supporting said cabin 24 forhousing the driver of the machine 10, to the corresponding front andrear crossbeams 26 sa, 26 sp, respectively.

Advantageously, as it can be inferred from the figures, said rearupright 263 is connected to the rear upper crossbeam 26 sp and to therear lower crossbeam 26 ip.

With advantage, as it can be inferred from the figures, in the machine10, said frame 26 for supporting said cabin 24 for housing the driver ofthe machine 10 is vertically, or perpendicularly, connected while beingmovable to a corresponding rotatable frame 28, in particular ahorizontally rotatable frame.

Advantageously, as it can be inferred in particular from FIG. 6 , saidframe 26 for supporting said cabin 24 for housing the driver of themachine 10 is vertically, or perpendicularly, actuated while beingmovable with respect to said rotatable frame 28, through correspondingactuating means 29, preferably in the form of a corresponding cylinder,preferably a hydraulic cylinder, 29, in particular vertically, orperpendicularly, oriented, and having the respective cylinder 291secured to said rotatable frame 28 and the corresponding movable stem292 connected to said frame 26 for supporting said cabin 24 for housingthe driver of the machine 10.

In a particularly advantageous manner, as it can be inferred from thefigures, said frame 26 for supporting said cabin 24 for housing thedriver of the machine 10 is connected to the corresponding rotatableframe 28, through corresponding guide means 268′, 286 on said frame 26for supporting said cabin 24 for housing the driver of the machine 10and on said rotatable frame 28, respectively.

In particular, said guide means comprise a pair of parallel guides 286,286 on said rotatable frame 28 and a pair of sliding pads 268′, 268′ atthe end of corresponding arms 268″, 268″, projecting at the rear fromsaid frame 26 for supporting said cabin 24 for housing the driver of themachine 10.

With advantage, as it can be inferred from said FIG. 6 , said rotatableframe 28 comprises a pair of vertical uprights 281, 282, in particularbearing said vertical guides 286, 286, and a pair of crossbeams,respectively upper and lower crossbeams 283, 284.

Advantageously, as it can be inferred from the figures and in particularfrom FIG. 6 , in the machine a corresponding fulcrum body 30 isprovided, in particular having a part, in particular an outer part 301,which is supported in a fixed condition by said main support frame 12,and a part 302, which is rotatably supported by said fixed part 301,preferably internally to the same fixed part 301, which rotatable part302 is integral, at a respective side, of said rotatable frame 28, whichis thus supported off-centered with respect to said rotation axis R.

Advantageously, as it can be inferred from the figures, actuating meansfor the rotation of said cabin 24 for housing the driver of the machine10 are provided.

With advantage, as it can be inferred from the figures, said actuatingmeans for the rotation of said cabin 24 for housing the driver of themachine 10 comprise a corresponding motor, in particular housed withinsaid fulcrum body 30, or in the form of corresponding hydraulic cylindermeans, which rotate said rotatable part 302 of the fulcrum body 30.

In a particularly advantageous manner, as it can be inferred from thefigures, means, or apparatus 32 for the actuation of said machine 10, orfor moving said means 14 for advancing the machine with respect to theground and/or other operative means of the machine 10 are provided.

Advantageously, as it can be inferred from the figures, said fulcrumbody 30 is supported in front of said means, or apparatus 32 for theactuation of said machine 10.

With advantage, as it can be inferred from the FIGS. 7A and 7B, means 35for the protection of the cabin 24, in particular of said front wall 242of the cabin 24 are provided.

Advantageously, as it can be inferred from the FIGS. 7A and 7B, saidmeans for protecting the cabin 24, in particular of said front wall 242of the cabin 24, comprise a corresponding protection grid, in particulara metallic grid 35, especially arranged in front of said front wall 242of the cabin 24.

With advantage, said protection grid, in particular a metallic grid 35,extends throughout the entire extent of said front wall 242 of the cabin24 and it is preferably curved in order to follow the curved trendthereof.

In this manner, the driver is protected, and he/she can safely operate.

Advantageously, in a preferred manner, said lowered transport positioncoincides, or substantially coincides, with said lowered position forthe access and/or exit of the driver.

Advantageously, said movable stem 292 of the actuating means is in anextended condition for positioning the cabin 24 in said position fordriving the machine in transfer advance, and in a retracted conditionfor positioning the cabin 24 in said lowered position for the accessand/or exit of the driver, i.e., in said lowered transport position.

In this manner, it is easy to drive the actuating means and/or when themachine is transposed it is not necessary to keep the hydraulic circuitunder pressure.

In practice, as it can be understood, the technical characteristicsillustrated above allow, singularly or in a respective combination,achieving one or more of the following advantageous results:

-   -   it is possible to arrange the cabin in advantageous vertical        operating positions;    -   the number of devices to control the machine needs not to be        duplicated;    -   it is possible to transport the machine without having to        disassemble said cabin;    -   it is possible for the driver to get on and off said cabin        without the aid of bulky elongated stairs;    -   it is possible for the driver to have a good view;    -   the predetermined longitudinal size of the machine is        maintained;    -   it is possible to use only one seat for the driver and single        control devices to drive the respective working operation of the        machine;    -   the cabin support frame does not obstruct the driver's view;    -   the driver is protected, and he/she can safely operate.

The present finding is susceptible of obvious industrial application.Furthermore, those skilled in the art will be able to devise a number ofmodifications and/or variations to make to the same finding, while stillfalling within the scope of the inventive concept, as widely set forthherein. Furthermore, those skilled in the art will be able to devisefurther preferred implementations of the finding, which comprise one ormore of the above-illustrated characteristics of the preferredimplementation. Furthermore, it has also to be understood that all thedetails of the finding can be substituted by technically equivalentmembers.

1. A machine, especially a padding machine (10), for the burying ofpipes, in particular adapted to cover said pipe with a correspondingmaterial, preferably consisting of the waste material of the pipe layingexcavation; comprising a main support frame (12) of the apparatus, acabin (24) for housing the driver of the machine (10), such a cabin isin the form of a cabin movable with respect to said main support frame(12), wherein said cabin (24) for housing the driver of the machine (10)can be positioned, in corresponding vertical positions, or placed atheight levels different from each other, preferably moving vertically,or perpendicularly to said ground.
 2. The machine according to claim 1,wherein said cabin (24) for housing the driver of the machine (10) has asingle seat (25) for the driver and the corresponding devices (27) forcontrolling the machine, arranged at said seat (25) and in particularinternally, or at the rear, with respect to the front wall (242) of thesame cabin (24) for housing the driver of the machine (10).
 3. Themachine according to claim 1, wherein said cabin (24) for housing thedriver of the machine (10) is supported, in particular directlysupported, by said support framework (12), and with respect to which itis movable in corresponding operating positions.
 4. The machineaccording to claim 1, wherein said cabin (24) for housing the driver ofthe machine (10) is movable in a lowered transport position, in which itfalls within the corresponding vertical footprint of the machine, inparticular having the respective upper part, in particular therespective part which is at the upper wall (246) of the cabin (28),which is in height inferiorly positioned with respect to the upper endpart (22′) of the remaining part of said machine (10), or of the upperend part (22′) of said means, or apparatus (22) for lifting the materialabove said means, or apparatus (18) for the treatment of said material.5. The machine according to claim 1, wherein said cabin (24) for housingthe driver of the machine (10) is in the form of a cabin (24) movable ina lowered position which for the same driver is to access to and/or exitfrom the same housing cabin (24), in particular, said lowered accessand/or exit position of the driver from the same cabin (28) is such asto allow access and/or exit of a driver who positions himself on theground on which the same machine (10) rests.
 6. The machine according toclaim 1, wherein said cabin (24) for housing the driver of the machine(10) is in the form of a cabin (24) movable in a respective raisedworking position.
 7. The machine according to claim 6, wherein saidcabin (24) for housing the driver of the machine (10) in the respectiveraised working position protrudes vertically above and beyond, or hasthe respective upper part, or wall (246) which is vertically above theupper end part (22′) of the remaining part of said machine (10), or ofthe upper end part (22′) of said means, or apparatus, (22) for liftingthe material above said means, or apparatus (18) for the treatment ofsaid material.
 8. The machine according to claim 6, wherein said cabin(24) for housing the driver of the machine (10) is in the form of acabin (24) movable in a respective working position, in particularraised, for driving the machine in transfer advance, preferably whereinsaid cabin (24) for housing the driver of the machine (10) has therespective wall or front face (242) which is directed longitudinallyforward.
 9. The machine according to claim 8, wherein said position ofthe cabin (24) for driving the machine in transfer advance is verticallyaligned with said lowered position of the same cabin (24) for accessand/or exit of the driver.
 10. The machine according to claim 8, whereinsaid position of the cabin (24) for driving the machine in transferadvance, and/or said lowered position of the same cabin (24) for theaccess and/or exit of the driver, are vertically aligned, or isvertically aligned, to said lowered position of the same cabin (24) fortransposing the same machine (10).
 11. The machine according to claim 8,wherein said cabin (24) moves between said position for driving themachine in transfer advance and said lowered position of the same cabin(24) for the access and/or exit of the driver, or between said positionfor driving the machine in transfer advance, or said lowered position ofthe same cabin (24) for the access and/or exit of the driver, and saidlowered position of the same cabin (24) for transposing the same machine(10), with vertical movement, or with movement perpendicular to saidground, perpendicular to the main support frame (12) of the machine. 12.The machine according to claim 1, wherein said cabin (24) for housingthe driver of the machine (10) moves in a respective lateral workingposition, in which it controls a respective side of the machine (10), orin respective first and second opposite lateral working positions, inwhich it controls the respective side of the machine (10), and in that,in the respective lateral working position, of the same cabin (24)having the corresponding wall or front face (242) which is laterallyfacing the machine (10).
 13. The machine according to claim 1, whereinsaid cabin (24) for housing the driver of the machine (10) in therespective working position projects in cantilevered fashion from saidmachine (10), in particular supported by said main support frame of themachine (10).
 14. The machine according to claim 13, wherein said cabin(24) for housing the driver of the machine (10) in the respectiveposition for driving the machine in transfer advance projects incantilevered fashion longitudinally of said machine (10).
 15. Themachine according to the preceding claim 13, wherein said cabin (24) forhousing the driver of the machine (10) in the respective lateral workingposition, in which it controls a respective side of the machine (10)projects cantilevered sideways to said machine (10).
 16. The machineaccording to claim 1, wherein said cabin (24) for housing the driver ofthe machine (10) is movable, through a rotation movement with respect toa respective axis (R), in particular perpendicular or vertical, in alateral working position, in which it controls a respective side of themachine (10), or in respective first and second opposite lateral workingpositions, in which it controls the respective side of the machine (10).17. The machine according to claim 16, wherein said rotation axis (R) isoutside the cabin and is preferably rearward and spaced therefrom. 18.The machine according to claim 16, wherein said cabin (24) for housingthe driver of the machine (10) is movable, through said rotationmovement, between said first and second opposite lateral workingpositions, in which it controls the respective side of the machine (10),with an angular movement equal to, or substantially equal to, 180°. 19.The machine according to claim 16, wherein said cabin (24) for housingthe driver of the machine (10) is movable, through said rotationmovement, between the respective lateral working position, in which itcontrols the respective side of the machine (10), and said drivingposition of the machine in transfer advance, with angular movement equalto, or substantially equal to, 90°.
 20. The machine according to claim1, wherein means (14) for advancing the machine with respect to theground are provided, in particular in the form of revolving means whichengage the ground and support said main support frame (12).